Sash latch



Patented J une 7, 1932 UNITED sr rns BENJAMIN r; KELLY, ornousron rnxnsSASH LATCH a i ueation filed July 16," 1931. Serial H0. 551,255.

Thi-s invention 'relatesto improvements in latching devices, andpertains particularly to an improved latch designed primarily for useupon an upper wmdow sash. A 4

The primary object-of the present inven tion is to provide a window-sashlatch WhlOll may be employed for securing the upper sash of a window inclosed position and which is of such a character that the hook of a window pole may be readily engaged therewith for releasing the latch sothat the sash to which it is attached may be drawn down.

Another object of the invention is to provide an improved sash latchwhich operates without springs but through the action of gravity and istherefore of simple construction and will not readily get out of order.

The invention will be best understood from a consideration of thefollowing detaileddescription taken in connectionwith the accompanyingdrawing forming part of this specification, with the understanding,however, that the invention is not confined to any strict conformitywith the showing of the drawing but may be changed or modified so longas such changes or modifications mark no material departure from thesalient features of the invention as expressed in the appended claims. i

In the drawing Figure 1 is a View partly in front elevation and partlyin section of a portion of the up per part of a window showing thedevice embodying the present invention applied thereto. v

Figure 2 is a vertical sectional view taken through the appliedstructure in a plane parallel with and behind the front plate of thelock.

Figure 3 is a top edge view of the lock per se.

Figure 4 is a sectional view taken on the line 4-4 of Figure 1.

Referring more particularly-to the drawing, wherein like numerals ofreference indicate corresponding parts throughout the several views, thenumeral 1 indicates generally a portion of the top part of a windowframe and the top rail of the upper sash in the window is indicatedgenerally by the numeral 2.

The present latch structure co'mprise's a keeper element 3 and the latchcarryingunit. The keeper element consists of a plate 5 which is securedagainst the underface of the top bar ofthe window frame, as shown, and astaple 6 which projects downwardly from the plate and is disposedtransversely of the frame, r

The front face of the top rail 2 of the upper sash is mortised out toreceive the rear por-' tion'of the latch carrying structure 4. This rearpart or portion of the. latch carrying structure comprises a casingwhich isjformed in two sections, the rear section consisting of the'rearwall 8 and the bottom and end'walls 9 and 10 respectively,.and the frontwall por tion or plate 11 which'extends, across the c front edges of theend walls 10 and rests upon the bottom wall 9, as shown-in Figure 4:.The front wall of the casing forms the front plate of the latchstructure and has its ends ex tended beyond the end walls 11 anda'pertured' to receive securing screws 12' which retain the latch casingin the mortise formed for it in the top rail'of the upper sash.

Formed ntegral with the upper edge of the v front plate 11 and extendinginwardly at right angles therefrom is a top wall for the latch casing,which is indicated by the numeral 13, and this lies within theareadefined by the endand back walls with its top surface position in thetop rail of the'upper sash, the r stapleenters this transverse recesswhen the sash is closed, as shownin Figure 4=.-

The front plate-of the casing is secured to the back section by thescrew bolt 15' and this supports within the casing the latch elei mentwhich is indicated generally by the numeral 16. i

This latch element consists of a-heavy body portion 17 which iseccentrically mounted for oscillation on the bolt 15 and whichhasintegral therewith and extending upwardly from a point substantially.directly above the, bolt; v

15, the hook or latch proper, which is indicated by the'numeral 18; Itwill thus be seen thatdue to the weight of the body 17 and the eccentricmounting thereof the side remote from the boltwill drop until it isstopped by the bottom 9 of the casing and it is so positioned inthe'casing that when this occurs the bill of the hook 18 will extendacross the slot 1& in. the manner shown.

Extending laterally from the body 17, adj acent the pivot 15, is an arm'19 by means of which oscillation of. the latch is effected.

This arm;19 normally extends across an opena ing 20 which is formed inthe face plate or front wall '11 of the casing. It will thus be seenthat when a pole, having a hook at its upperend, is employed for openingthe upper sashof a window equipped with the present latching device the.hook may be engaged in the opening 20 and upon pulling down thereon thearn119 will beoscillated to disengage the latch 18from the keeper staple6. 1

Extending forwardly from the rear wall 8 of the casing is a pin 21whichlimits the oscillatory movement of the latch element16.

In schools and other public buildings the windows are materially largerthan those employed in the majority of residences and where theusuallatching devices are employed for securing the sash of such windowstogether, it is necessary for the person desiring to unlock the windowsto climb up on a Y chair or ladder in order to reach the latch.

The upper sash is then drawn down by connecting a hooked end of apole,with an aperture in the top rail thereof, whereas by employin-g'thelatch embodying the present in vention as a means for locking the uppersash in place, the upper sash may be unlatched and opened simply byengaging the hooked end of the operating pole in the aperture 20 .so asto effect the depression of thearm 19 and therelease of the latch 18from the hooked end is still in theaperture 20 the sash may be drawn toopen position. a

keeper 6 in the manner previously described.

By then pulling down upon thepole while the Having thus described theinvention, what is claimed is: e V p v 1. A latch of the characterdescribed, comprisingja relatively fiat' casing having an edge openingto receive a keeper staple and an: opening in one sidethereof,vanelongated bodyin'the casing, pivot means oscillatably longitudinally ofthe body and normallyjdis v posed across the side opening of the casingto be engaged and depressed bya member inserted into the said sideopening to effect the body andprojectingtherefrom upon the side weightand normally disposed across said front wall plate opening forengagement by an actuating element, said arm' being pulled away from thefirst mentioned opening by the actuating element to effect the shiftingof the'latch bolt bill.

2; A window sash'latch, comprising a-casactuating element, andanarmcarried by said B5. of the mountingtherefor'opposite from said Y i Intestimony whereof Ihereunto aflix my 7 signature.

BENJAMIN I F. KELLY.

supporting thebody at one end, a latch bolt comprisingan extension fromsaid body at right angles to the length thereof and'at-the pivoted endand ahook at the end of the extension, the end of the body remote fromthe pivot operating as a weight to oscillate the body tonormallymaintainthe latch bolt hook across-said edge opening, and an armextending from the end of the body adjacent the-,pivot and upon the sideof the pivot o'p-' positeithe latch boltv and further extending-

